git.sesse.net Git - vlc/blob - src/playlist/search.c

   1 /*****************************************************************************
   2  * search.c : Search functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23 #include <vlc/vlc.h>
  24 #include <vlc/input.h>
  25
  26 #include "vlc_playlist.h"
  27
  28 /***************************************************************************
  29  * Item search functions
  30  ***************************************************************************/
  31
  32 /**
  33  * Search a playlist item by its playlist_item id
  34  *
  35  * \param p_playlist the playlist
  36  * \param i_id the id to find
  37  * \return the item or NULL on failure
  38  */
  39 playlist_item_t * playlist_ItemGetById( playlist_t * p_playlist , int i_id )
  40 {
  41     int i, i_top, i_bottom;
  42     i_bottom = 0; i_top = p_playlist->i_all_size - 1;
  43     i = i_top / 2;
  44     while( p_playlist->pp_all_items[i]->i_id != i_id &&
  45            i_top > i_bottom )
  46     {
  47         if( p_playlist->pp_all_items[i]->i_id < i_id )
  48             i_bottom = i + 1;
  49         else
  50             i_top = i - 1;
  51         i = i_bottom + ( i_top - i_bottom ) / 2;
  52     }
  53     if( p_playlist->pp_all_items[i]->i_id == i_id )
  54     {
  55         return p_playlist->pp_all_items[i];
  56     }
  57     return NULL;
  58 }
  59
  60 /**
  61  * Search an item by its input_item_t
  62  *
  63  * \param p_playlist the playlist
  64  * \param p_item the input_item_t to find
  65  * \return the item, or NULL on failure
  66  */
  67 playlist_item_t * playlist_ItemGetByInput( playlist_t * p_playlist ,
  68                                            input_item_t *p_item )
  69 {
  70     int i;
  71     if( p_playlist->status.p_item && p_playlist->status.p_item->p_input == p_item )
  72     {
  73         return p_playlist->status.p_item;
  74     }
  75
  76     for( i =  0 ; i < p_playlist->i_all_size; i++ )
  77     {
  78         if( p_playlist->pp_all_items[i]->p_input == p_item )
  79         {
  80             return p_playlist->pp_all_items[i];
  81         }
  82     }
  83     return NULL;
  84 }
  85
  86 /***************************************************************************
  87  * Live search handling
  88  ***************************************************************************/
  89
  90 int playlist_LiveSearchUpdate( playlist_t *p_playlist, playlist_item_t *p_root,
  91                                const char *psz_string )
  92 {
  93    int i;
  94    for( i = 0 ; i< p_root->i_children ; i ++ )
  95    {
  96         playlist_item_t *p_item = p_root->pp_children[i];
  97         if( p_item->i_children > -1 )
  98         {
  99             playlist_LiveSearchUpdate( p_playlist, p_item, psz_string );
 100         }
 101 #define META_MATCHES( field ) ( p_item->p_input->p_meta && \
 102                                 p_item->p_input->p_meta->psz_##field && \
 103                                 strcasestr( p_item->p_input->p_meta->psz_##field, psz_string ) )
 104         if( strcasestr( p_item->p_input->psz_name, psz_string ) ||
 105             META_MATCHES( artist ) || META_MATCHES( album ) )
 106             p_item->i_flags &= ~PLAYLIST_DBL_FLAG;
 107         else
 108             p_item->i_flags |= PLAYLIST_DBL_FLAG;
 109    }
 110    return VLC_SUCCESS;
 111 }